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| author | Matthew Brost <matthew.brost@intel.com> | 2023-06-15 21:22:36 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:34:44 +0300 |
| commit | 37430402618db90b53aa782a6c49f66ab0efced0 (patch) | |
| tree | 8cb0a25d18c02cca49a60c454d90535cfb25a2a8 /drivers/gpu/drm/xe/xe_bo.h | |
| parent | ee6ad13705286b19f5ffc19000b1d1574208efc9 (diff) | |
| download | linux-37430402618db90b53aa782a6c49f66ab0efced0.tar.xz | |
drm/xe: NULL binding implementation
Add uAPI and implementation for NULL bindings. A NULL binding is defined
as writes dropped and read zero. A single bit in the uAPI has been added
which results in a single bit in the PTEs being set.
NULL bindings are intendedd to be used to implement VK sparse bindings,
in particular residencyNonResidentStrict property.
v2: Fix BUG_ON shown in VK testing, fix check patch warning, fix
xe_pt_scan_64K, update __gen8_pte_encode to understand NULL bindings,
remove else if vma_addr
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Suggested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_bo.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_bo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h index dd3d448fee0b..3a148cc6e811 100644 --- a/drivers/gpu/drm/xe/xe_bo.h +++ b/drivers/gpu/drm/xe/xe_bo.h @@ -61,6 +61,7 @@ #define XE_PPGTT_PTE_LM BIT_ULL(11) #define XE_PDE_64K BIT_ULL(6) #define XE_PTE_PS64 BIT_ULL(8) +#define XE_PTE_NULL BIT_ULL(9) #define XE_PAGE_PRESENT BIT_ULL(0) #define XE_PAGE_RW BIT_ULL(1) |